iv “PARSE WO AACE, 
have been long noted for their inexhauftible 
veins of copper; nor lefs famous are the lead 
mines of Derbyfhire, Cardiganfbire and Flint- 
_fbire, which have been worked for ages, yet 
thew no fign of the decline of their ftores. 
In all thefe, nature fports with great lux- 
uriancy; the cryftallized lead ore of Tralee *, 
the fibrous lead ore of Tipperary; the lami- 
nated lead ore of Lord Hoptoun’s mines; the 
cryftalized tins, and the figured ores of Zink, 
are equally noted for their elegance, {carcity, 
and richnefs. 
The ore of Zink, or Lapis Calaminaris, is 
found in vaft quantities in the counties of So- 
merfet and Flint; while black lead ot wadd, a 
fubftance fcarce known in other kingdoms, 
abounds in the mountains of Cumberland. 
To the Swedi/h Petroleum, we may oppofe 
the Well at Pitchford, and that of Sz. Cathe- 
rine’s near Edenburg; our amber and our jet, 
together with our inexhauftable ftrata of coal 
found in fo many parts of this kingdom, will, 
in the article of bitumens, give us the fu- 
periority over thefe fo much boafted produc- 
tions of Sweden. 
To avoid a tedious énumeration, we fhall 
only mention our wonderful mines of rock 
falt; our allum and our vitriol works; our 
various marbles, alabafters, and ftones; our 
moft excellent clays and earths +-; all which 
* In the county of Kerry. 
+ If the inquifitive reader is defirous of a farther account 
of the number and excellence of our fubterraneous produc- 
tions, 
